DACIA SUPERNOVA 2004 Repair Manual

DRIVE SHAFTS
29
BELLOWS TO WHEEL
Introduce the smaller di ameter of the
bellows on the PF 537 – 03 device.
Cove r a ha nd with c lean ga uz e a nd
place it on the bellows in such a way as to
str etch the first fol d.
T ake support with the hip on the edge
of the vice (latera l side). Place the ot her hand around the first one
and strongly pull it, taking c are that first
fold is not huddled together. Bring the bellows a s close as possible
to the device cylindri cal par t and l et i t
release till half stroke. It is recommended to perfo rm many
times this opera tion (m aximum 5 times). When e asy slipping i s noticed, make so
that bellows is passing ove r the de vice
cylindrical part, the operation being
performed without stopping.
29 - 9
Left
transmi ssion
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DRIVE SHAFTS
29BELLOWS TO WHEEL
Catch the steering knuc kle c asing in a vice
with soft jaws. Put the spri ng a nd he a d i n t he t ri pod
groove.
Brings the clogs to the center.
Position the retaining star (s), and each of
its arm s, being at the bi secting lines of t he
angles formed by the tri pod arms.
Int roduc e the tra nsm ission sha ft i n the
s teering knuckle casing, positioning it, subject
to the m arks (the t hree c logs penetrating in
the thre e rolling routes of the shaft). Slide slowl y t he t ransm i ssi on sha ft, i n
order to engage one arm of the re taining star
in the marked poi nt of the transmission shaft,
and press it for correct centeri ng.
Placing the other re taining star t wo arms,
it will be made easy by a screwdriver, with its
end modifi ed as per dra wing:
A = 5 mm B = 3 mm
Ensure that retaining star arms are correctly
positioned in the shaft marks. Check by hand, the joint operation.
Must not exist any hard point.
Di stribute in the bellows and in the steering
knuckle casing the gre ase pre scribed dosage.
NOTE It is obligatory to observe the quantity and
type of t he prescribed grease, 2 l +1 c l, ELF
CARDREXA RNT 2.
29 - 10
Left
transmi ssion
S
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DRIVE SHAFTS
29
BELLOWS TO WHEEL
Po sition t he two be l l ows be ads i n t he groove s of t he st e e ri ng knuc kl e c asi ng,
consequently on the transmission shaft tube. Place a non-cutting, round headed rod between the transmission shaft and the bellows
in order to dose the amount of air inside. Mount the two collars, by means of the two rods used also at t he di smounting ope ration.
29 - 11
Left
transmi ssion
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DRIVE SHAFTS
29BELLOWS TO GEARBOX
JOINT TOWARDS GEARBOX - GI
1. Tulip
2. Tripod
3. Blocking ri ng
4. Rubber bellows
5. Maintaining collars
DISMOUNTING
Cut the maintaining collar.
Cut by means of a saw the existent collar,
taking c are not t o sc ratch t he t ulip in t he
mounting area with the bellows.
29 - 12
Right
transmissi on
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DRIVE SHAFTS
29
Cut the bellows.
Remove maximum of grease.
NOTE :
The t ulip not being equipped with a
ho o d ha ving re tainin g wings,
dismounting is to be performed without
forcing.
It is avoided th e cams exit from the
trunnions (tripod a rms) because the rol l-
needles and the cams are paired and must
be not reversed. Nev er u se th inner to wash the
component parts.
Dismount the blocking ri ng. BELLOWS TO GEARBOX
29 - 13
Right
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DRIVE SHAFTS
29BELLOWS TO GEARBOX
Using a press, extract the assembled tripod, sustain it on an extractor type FACOM U
53 G, protecting the clogs of the tri pod.
REMOUNTING
Grease the transmission shaft to help the protection bellows putting back (positionin g
of the smallest diameter of the bellows on the transmission shaft).
The tripod is fixe d an d mo unted in the posi tion mark ed on dis mount ing.
Thr ee po in ts of crim pin g ar e mad e at 12 0 ° C by met al he ad ing of the tran sm iss ion
shaft grooves .
Distribute the grease prescribed quantity in the bellows and in the tulip casing .
Correctly position the bellows in the tulip-casing place.
A non-cutting, round-headed rod is introduced between the bellows and the tulip casing
to dose the air amount contained insid e the bellows. Len gthen or co mp re ss the bel l ows un ti l va lu e A = 19 0 mm is obt ained (t he va lue
between the extremity of the bellows and the extremity of the tulip casing) then from this
position extract the rod and remount the collars.
29 - 14
Right
transmissi on
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DRIVE SHAFTS
29BELLOWS TO WHEEL
JOINT TOWARDS THE WHEEL – GE
1. Steering knuckle casing assembled
2. Retaining star.
3. Tripod to wheel
4. Tulip shaft
5. Ma in taining collars
6. Protection rubber bellows
DISMOUNTING
Dismount the two m aintaining collars using two rod s locally produced (see the method
previously descri bed for dismounting the joint GE, left transmission). Cut and remove the damaged bellows.
Take out maximum of grease.
In order to re place t he joint GE prot ection be llows, i t i s necessary to dismount/remount
the GI joint parts (see the method pre viously descri bed).
REMOUNTING
Grease the rod of t ransmission shaft with grease.
Introduce the protection bellows of the GE joint.
Di stribute the prescri bed dosage of grease for GE joint.
Position the bellows beads in the grooves of the steering knuckle casi ng, consequently
on the t ransmission shaft t ube and mount t he collars (see t he method descri bed at mounting
GE joint bellows, left transm ission).
29 - 15
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30
GENERAL
30 - 1
SCHEDULE OF HYDRAULIC BRAKE SYSTEM IN PARALLEL
WITH BY–PASS CIRCUIT
BRAKE IN PARALLEL WITH BRAKE LIMITER
GENERAL PRINCIPLE SCHEDULE OF THE BRAKE
CIRCUIT
NO TE :
The following schedule is a ge neral principle schedule and it cannot be considered as
ref erence for the brake circuit failures and damages When replacing one of the vehicle
brake circuit element, the ducts must be identified before dismount them, in order to be
able to reconnect them obligatory in their initial positions.
* front brake circuit:
* rear brake circuit
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30
GENERAL
30 - 2
FRONT HALF AXLE
TIGHTENING MOMENTS (daNm)
FRONT
AXLE
8,5
3,2
7,5
16
12
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30
GENERAL
30 - 3
TIGHTENING MOMENTS (daNm)
FRONT HALF AXLE
FRONT
AXLE
1,45
8
3,2
12
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